Isolating switch operating mechanism with optimized volume

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a disconnecting switch operating mechanism with optimized volume, which comprises a connecting rod system, the connecting rod system comprises a lower side plate and an upper side plate which are symmetrically arranged, the lower side plate and the upper side plate are connected through a positioning system, and a rocker arm is arranged between the lower side plate and the upper side plate. The rocker arm is sequentially connected with a first connecting rod, a second connecting rod and a third connecting rod, an output system is installed on the third connecting rod, an input system is installed on the outer side of the connecting rod system, and the input system enables the main frame rod to rotate through external torque to drive the main spring to provide mechanism power. According to the isolating switch operating mechanism with the optimized volume, the volume optimization of the operating mechanism is successfully realized by adopting the lower side plate and the upper side plate which are symmetrically arranged as well as a simple connecting rod system. The design not only reduces the occupied space of the equipment, but also enables the operating mechanism to be more compact, and is convenient to install and use in occasions with limited space.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely, relate to a kind of disconnecting switch operating mechanism of optimized volume. BACKGROUND

[0002] In power system, disconnecting switch is widely used in substation and power plant of various voltage levels as important control and protection equipment. The main function of disconnecting switch is to reliably isolate live part from maintenance part during equipment maintenance, to ensure the safety of workers and normal maintenance of equipment. The operating mechanism of disconnecting switch is the key component to realize this function.

[0003] Traditional disconnecting switch operating mechanism often has problems such as large volume, complex structure and inconvenient operation. These problems not only increase the manufacturing cost and maintenance difficulty of equipment, but also limit the wide application of disconnecting switch in compact substation and smart grid. Especially in occasions with high space requirement, such as urban power grid and offshore wind power platform, the volume problem of traditional operating mechanism is particularly prominent.

[0004] In addition, traditional operating mechanism also has deficiencies in power transmission and mechanical efficiency. Complex link mechanism and numerous transmission components result in large power loss and low operation efficiency. At the same time, due to the large number of components, the possibility of failure is also increased, which affects the reliability and stability of disconnecting switch. SUMMARY

[0005] The utility model aims at providing a kind of disconnecting switch operating mechanism of optimized volume to solve the problems of traditional disconnecting switch operating mechanism mentioned in the above background technology, such as large volume, complex structure and inconvenient operation.

[0006] To achieve the above purpose, the utility model provides a kind of disconnecting switch operating mechanism of optimized volume, which includes link rod system, the link rod system includes symmetrically arranged lower side plate and upper side plate, the lower side plate and the upper side plate are connected by positioning system, the lower side plate and the upper side plate are provided with rocker arm, the rocker arm is sequentially connected with first link rod, second link rod and third link rod, the third link rod is installed with output system, the outside of link rod system is installed with input system, the input system makes main frame rod rotate by external torque, and then drives main spring to provide mechanism power.

[0007] As preferred, the upper part of the rocker arm is connected with the upper end of the first link rod through the pin shaft, the lower part of the rocker arm is rotatably connected with the lower side plate and the upper side plate through the pin shaft, the bottom end of the rocker arm is connected to auxiliary spring, the bottom end of the first link rod is rotatably connected with the upper end of the second link rod through the pin shaft, the bottom end of the second link rod is rotatably connected with one end of the third link rod through the pin shaft.

[0008] As preferred, the input system is a plate structure, the input system is provided with a transmission rod, an auxiliary positioning member and a lateral positioning member, the surface of the input system is provided with a first movable transmission hole, a second movable transmission hole and an auxiliary positioning slot hole, the first movable transmission hole is connected with the main frame rod through the auxiliary positioning member, and the second movable transmission hole is connected with the transmission rod.

[0009] As preferred, the output system is a rod structure, the two sides are respectively provided with a first transmission plane and a second transmission plane, one end is provided with an auxiliary positioning circle, the outer end of the auxiliary positioning circle is provided with an input positioning slot, and the surface of the output system is provided with a lower positioning slot and an upper positioning slot.

[0010] As preferred, the side of the third connecting rod is provided with a positioning hole, the output system passes through the positioning hole and is positioned through the first transmission plane and the second transmission plane, and the end of the output system passes through the auxiliary positioning slot hole and is positioned through cooperation of the lateral positioning member and the input positioning slot.

[0011] As preferred, the lower positioning slot is located on the outer side of the lower side plate, the upper positioning slot is located on the outer side of the upper side plate, the input positioning slot is located on the outer side of the input system, and the lower positioning slot and the upper positioning slot are both provided with a snap ring.

[0012] As preferred, the connecting rod system is unlocked and tripped through an unlocking and tripping system, the tripping system comprises a lock piece and an unlocking piece, the two ends of the unlocking piece are rotatably connected with the lower side plate and the upper side plate, the upper part of the lock piece is provided with a lock opening, the lock opening is in clamping cooperation with the upper end of the rocker arm, the outer wall of the unlocking piece abuts against the bottom of the lock piece, and the unlocking piece is unlocked by realizing disengagement from the bottom of the lock piece through overturning.

[0013] As preferred, the lock piece is fixed between the lower side plate and the upper side plate through a positioning system, the positioning system is a rod structure, the two ends are respectively provided with a first extending end and a second extending end, and the first extending end and the second extending end respectively extend from the outer walls of the lower side plate and the upper side plate.

[0014] As preferred, the bottom end of the main spring is connected with the pin shaft of the third connecting rod, and the bottom end of the auxiliary spring is connected with the bottom ends of the lower side plate and the upper side plate.

[0015] As preferred, the cross-sectional structure of the second movable transmission hole is matched with that of the transmission rod, and both are hexagonal structures.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1、The optimized volume isolator operating mechanism, by adopting the symmetrically arranged lower side plate and upper side plate, and the simplified connecting rod system, successfully realizes the volume optimization of the operating mechanism. This design not only reduces the occupied space of the equipment, but also makes the operating mechanism more compact, facilitating installation and use in space-limited occasions.

[0018] 2、The optimized volume isolator operating mechanism, by means of the ingenious connecting rod connection mode and the design of the input and output system, simplifies the structure of the operating mechanism. The fewer number of components and the simple connection mode not only reduce the manufacturing cost, but also reduce the maintenance difficulty and the possibility of failure.

[0019] 3、The optimized volume isolator operating mechanism, by means of the external torque provided by the input system, drives the main frame rod to rotate, and then drives the main spring to provide power. This design realizes efficient power transmission, reduces power loss, and improves operating efficiency. At the same time, the introduction of auxiliary spring further enhances the stability and reliability of power transmission.

[0020] 4、The optimized volume isolator operating mechanism, the connecting rod system, the input system, the output system and the tripping and tripping system are carefully designed to ensure the reliability and stability of the operating mechanism. In particular, the setting of the tripping and tripping system enables the operating mechanism to quickly and accurately complete the tripping and tripping operation when needed, improving the response speed and safety of the equipment.

[0021] 5、The optimized volume isolator operating mechanism, the transmission plane and positioning slot hole on the output system, and the movable transmission hole and auxiliary positioning slot hole on the input system provide convenience for the positioning and installation of the operating mechanism. These designs not only improve the installation precision, but also enable the operating mechanism to maintain a stable working state during use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is a schematic diagram of the internal structure of the utility model;

[0024] Figure 3 is a schematic diagram of the connecting rod system in the utility model;

[0025] Figure 4 is a schematic diagram of part of the connecting rod system in the utility model;

[0026] Figure 5 is a schematic diagram of the input system in the utility model;

[0027] Figure 6It is the structure schematic view of the output system in the utility model;

[0028] Figure 7 It is the structure schematic view of the unlocking and tripping system in the utility model;

[0029] Figure 8 It is the structure schematic view of the positioning system in the utility model;

[0030] The meaning of each reference numeral in the drawing is as follows:

[0031] 1, connecting rod system;11, lower side plate;12, upper side plate;13, rocker arm;14, first connecting rod;15, second connecting rod;16, third connecting rod;2, input system;201, transmission rod;202, auxiliary positioning member;2021, first movable transmission hole;2022, second movable transmission hole;2023, auxiliary positioning slot hole;203, lateral positioning member;3, main spring;4, auxiliary spring;5, output system;51, first transmission plane;52, second transmission plane;53, lower positioning slot;54, upper positioning slot;55, input positioning slot;56, auxiliary positioning circle;6, unlocking and tripping system;601, locking member;602, unlocking member;7, positioning system;701, first extension end;702, second extension end;8, main frame rod. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] The utility model provides a kind of disconnecting switch operating mechanism of optimized volume, as shown in Figures 1-8 The utility model discloses a kind of disconnecting switch operating mechanism of optimized volume, as shown in It includes connecting rod system 1, connecting rod system 1 includes symmetrically arranged lower side plate 11 and upper side plate 12, lower side plate 11 and upper side plate 12 are connected by positioning system 7, rocker arm 13 is arranged between lower side plate 11 and upper side plate 12, rocker arm 13 is sequentially connected with first connecting rod 14, second connecting rod 15 and third connecting rod 16, output system 5 is installed on third connecting rod 16, input system 2 is installed on the outside of connecting rod system 1, input system 2 is rotated by external torque to make main frame rod 8, in turn drive main spring 3 to provide mechanism power.The utility model successfully realizes the volume optimization of disconnecting switch operating mechanism by using symmetrically arranged lower side plate 11 and upper side plate 12 and the connecting rod system 1 of simplified design.This design makes the whole mechanism more compact, effectively reduces the occupied space of equipment.

[0034] The lower side plate 11 and the upper side plate 12 are firmly connected through the positioning system 7, ensuring the structural stability and symmetry of the linkage system 1. This firm connection also provides reliable support for subsequent power transmission.

[0035] The rocker arm 13, as the core component of the linkage system 1, is connected in sequence with the first linkage 14, the second linkage 15, and the third linkage 16 through precise connection methods, forming a set of efficient and simple transmission mechanism. This design not only simplifies the structure of the mechanism, but also improves the efficiency and accuracy of transmission.

[0036] The input system 2 is installed on the outside of the linkage system 1, which makes the main frame 8 rotate through the input of external torque. This rotating action in turn drives the compression or release of the main spring 3, providing a stable and reliable power source for the entire operating mechanism. This power supply method is not only efficient, but also easy to control and adjust.

[0037] The output system 5 is installed on the third linkage 16, which is used to output the power transmitted by the linkage system 1 to other parts of the disconnecting switch. This integrated design makes the entire operating mechanism more compact, and also facilitates the connection and cooperation with other components.

[0038] In this embodiment, the upper part of the rocker arm 13 is connected to the upper end of the first linkage 14 through a pin shaft, the lower part of the rocker arm 13 is rotatably connected to the lower side plate 11 and the upper side plate 12 through a pin shaft, the bottom end of the rocker arm 13 is connected to the auxiliary spring 4, the bottom end of the first linkage 14 is rotatably connected to the upper end of the second linkage 15 through a pin shaft, and the bottom end of the second linkage 15 is rotatably connected to one end of the third linkage 16 through a pin shaft. This design enables the rocker arm to stably transmit power and provide additional elastic support through the auxiliary spring 4, enhancing the stability and response speed of the mechanism.

[0039] Specifically, the input system 2 is a plate-like structure, and the input system 2 is provided with a transmission rod 201, an auxiliary positioning piece 202, and a lateral positioning piece 203. The surface of the input system 2 is provided with a first movable transmission hole 2021, a second movable transmission hole 2022, and an auxiliary positioning slot hole 2023. The first movable transmission hole 2021 is connected with the main frame 8 through the auxiliary positioning piece 202, and the second movable transmission hole 2022 is connected with the transmission rod 201. This design enables the input system to accurately receive external torque and accurately transmit power to the main frame 8 and other related components through the transmission rod and positioning piece, improving the accuracy and efficiency of transmission.

[0040] Further, the output system 5 is a rod-shaped structure, and first transmission plane 51 and second transmission plane 52 are arranged on both sides respectively, and an auxiliary positioning circle 56 is installed at one end, and an input positioning groove 55 is arranged at the outer end of the auxiliary positioning circle 56, and the surface of the output system 5 is provided with a lower positioning groove 53 and an upper positioning groove 54. This design makes the output system convenient to connect and position with other components, while ensuring the stability and reliability of power transmission.

[0041] Further, the side of the third connecting rod 16 is provided with a positioning hole, the output system 5 passes through the positioning hole, and is positioned with the positioning hole through the first transmission plane 51 and the second transmission plane 52, and the end of the output system 5 passes through the auxiliary positioning groove hole 2023 and is positioned by cooperating with the input positioning groove 55 through the lateral positioning piece 203. This design ensures the accurate connection and stable transmission between the output system and the third connecting rod.

[0042] Further, the lower positioning groove 53 is located on the outside of the lower side plate 11, the upper positioning groove 54 is located on the outside of the upper side plate 12, and the input positioning groove 55 is located on the outside of the input system 2, and a snap ring is installed in each of the lower positioning groove 53 and the upper positioning groove 54. Further enhance the stability and positioning accuracy of the output system.

[0043] Further, the connecting rod system 1 is unlocked and tripped by the unlocking and tripping system 6, and the tripping system 6 includes a locking piece 601 and an unlocking piece 602, the two ends of the unlocking piece 602 are rotatably connected with the lower side plate 11 and the upper side plate 12 respectively, the upper part of the locking piece 601 is provided with a lock port, the lock port is in clamping cooperation with the upper end of the rocker arm 13, and the outer wall of the unlocking piece 602 abuts against the bottom of the locking piece 601, and the unlocking piece 602 is unlocked by turning over to separate from the bottom of the locking piece 601. This design makes the operating mechanism convenient to realize unlocking and tripping operation, improves the flexibility and reliability of the mechanism.

[0044] Further, the locking piece 601 is fixed between the lower side plate 11 and the upper side plate 12 through the positioning system 7, and the positioning system 7 is a rod-shaped structure, and first extension end 701 and second extension end 702 are arranged at both ends respectively, and the first extension end 701 and the second extension end 702 extend from the outer wall of the lower side plate 11 and the upper side plate 12 respectively. This design ensures the stable installation and accurate positioning of the locking piece, and provides reliable support for the unlocking and tripping operation.

[0045] Further, the bottom end of the main spring 3 is connected with the pin shaft of the third connecting rod 16, and the bottom end of the auxiliary spring 4 is connected with the bottom end of the lower side plate 11 and the upper side plate 12. This design makes the main spring and the auxiliary spring can jointly provide power support for the operating mechanism, enhances the energy storage capacity and response speed of the mechanism.

[0046] Further, the second movable transmission hole 2022 is adapted to the cross-sectional structure of the transmission rod 201, and both are hexagonal structures. This design enables the transmission rod to be stably inserted into the second movable transmission hole and achieve accurate transmission and positioning through the hexagonal cross-sectional structure, thereby improving the stability and reliability of transmission.

[0047] The optimized volume isolating switch operating mechanism in use first inputs the external torque through the transmission rod 201 of the input system 2, and the transmission rod 201 is inserted into the second movable transmission hole 2022. Since the cross-sectional structures of the two are adapted (both are hexagonal), the stability and accuracy of transmission are ensured. The rotation of the transmission rod 201 drives the overall rotation of the input system 2, and then the first movable transmission hole 2021 and the auxiliary positioning piece 202 make the main frame rod 8 rotate. The rotation of the main frame rod 8 compresses or releases the main spring 3, and the bottom end of the main spring 3 is connected with the pin shaft of the third connecting rod 16, so that the energy storage or release of the main spring 3 will be directly transmitted to the connecting rod system 1.

[0048] The rocker arm 13 is the core component of the connecting rod system 1, and the upper part thereof is connected with the upper end of the first connecting rod 14 through a pin shaft, and the lower part is rotatably connected with the lower side plate 11 and the upper side plate 12 through a pin shaft. When the main spring 3 releases energy, it sequentially transmits power to the rocker arm 13 through the third connecting rod 16, the second connecting rod 15 and the first connecting rod 14, and the rocker arm 13 stably rotates under the elastic support of the auxiliary spring 4. This design of the connecting rod system 1 forms a set of efficient and simple transmission mechanism, ensuring stable transmission and efficient conversion of power.

[0049] The third connecting rod 16 is provided with an output system 5, and the output system 5 is a rod-shaped structure, and the two sides are respectively provided with a first transmission plane 51 and a second transmission plane 52. The output system 5 passes through the positioning hole on the side edge of the third connecting rod 16, and is positioned through the first transmission plane 51 and the second transmission plane 52 and the positioning hole, ensuring the accurate connection between the output system and the third connecting rod. The end of the output system 5 passes through the auxiliary positioning slot hole 2023, and is further positioned through the cooperation of the lateral positioning piece 203 and the input positioning slot 55, thereby enhancing the stability of the output system.

[0050] When the connecting rod system 1 transmits power to the output system 5, the output system 5 is positioned and matched with the lower side plate 11 and the upper side plate 12 through the lower positioning slot 53 and the upper positioning slot 54 (wherein a snap ring is installed) on the surface thereof, thereby ensuring that the power is stably output to other parts of the isolating switch.

[0051] The connecting rod system 1 is unlocked and tripped by the unlocking and tripping system 6, the lock piece 601 is fixed between the lower side plate 11 and the upper side plate 12 through the positioning system 7, and the upper portion is provided with a lock opening and the upper end of the rocker arm 13 is clamped and matched, the two ends of the unlocking piece 602 are rotationally connected with the lower side plate 11 and the upper side plate 12 respectively, and the outer wall is abutted on the bottom of the lock piece 601. When unlocking is needed, the unlocking piece 602 is turned over to be separated from the bottom of the lock piece 601, so that the unlocking and tripping operation is realized. The design makes the operation mechanism realize the unlocking and tripping operation conveniently, and improves the flexibility and reliability of the mechanism.

[0052] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and the changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A volume-optimized disconnector operating mechanism, comprising a linkage system (1), characterized in that: The linkage system (1) includes a lower side plate (11) and an upper side plate (12) arranged symmetrically. The lower side plate (11) and the upper side plate (12) are connected by a positioning system (7). A rocker arm (13) is provided between the lower side plate (11) and the upper side plate (12). The rocker arm (13) is connected in sequence to a first link (14), a second link (15) and a third link (16). An output system (5) is installed on the third link (16). An input system (2) is installed on the outside of the linkage system (1). The input system (2) rotates the main frame rod (8) through external torque, thereby driving the main spring (3) to provide mechanical power. The upper part of the rocker arm (13) is connected to the upper end of the first connecting rod (14) by a pin. The lower part of the rocker arm (13) is rotatably connected to the lower side plate (11) and the upper side plate (12) by a pin. The bottom end of the rocker arm (13) is connected to the auxiliary spring (4). The bottom end of the first connecting rod (14) is rotatably connected to the upper end of the second connecting rod (15) by a pin. The bottom end of the second connecting rod (15) is rotatably connected to one end of the third connecting rod (16) by a pin. The input system (2) is a plate-shaped structure. The input system (2) is provided with a transmission rod (201), an auxiliary positioning component (202) and a lateral positioning component (203). The surface of the input system (2) is provided with a first movable transmission hole (2021), a second movable transmission hole (2022) and an auxiliary positioning slot (2023). The first movable transmission hole (2021) is connected to the main frame rod (8) through the auxiliary positioning component (202), and the second movable transmission hole (2022) is connected to the transmission rod (201). The output system (5) is a rod-shaped structure with a first transmission plane (51) and a second transmission plane (52) on both sides respectively. An auxiliary positioning circle (56) is installed at one end. An input positioning groove (55) is provided at the outer end of the auxiliary positioning circle (56). A lower positioning groove (53) and an upper positioning groove (54) are provided on the surface of the output system (5).

2. The optimized volume disconnector operating mechanism according to claim 1, characterized in that: The third link (16) has a positioning hole on its side. The output system (5) passes through the positioning hole and is positioned with the positioning hole through the first transmission plane (51) and the second transmission plane (52). The end of the output system (5) passes through the auxiliary positioning slot (2023) and is positioned by the cooperation of the lateral positioning member (203) and the input positioning slot (55).

3. The optimized volume disconnector operating mechanism according to claim 2, characterized in that: The lower positioning groove (53) is located on the outside of the lower side plate (11), the upper positioning groove (54) is located on the outside of the upper side plate (12), the input positioning groove (55) is located on the outside of the input system (2), and a retaining ring is installed in both the lower positioning groove (53) and the upper positioning groove (54).

4. The optimized volume disconnector operating mechanism according to claim 1, characterized in that: The linkage system (1) performs unlocking and release operations through the unlocking and release system (6). The release system (6) includes a locking component (601) and a release component (602). The two ends of the release component (602) are rotatably connected to the lower side plate (11) and the upper side plate (12) respectively. The upper part of the locking component (601) is provided with a locking port, which is engaged with the upper end of the rocker arm (13). The outer wall of the release component (602) abuts against the bottom of the locking component (601). The release component (602) unlocks by flipping and disengaging from the bottom of the locking component (601).

5. The optimized volume disconnector operating mechanism according to claim 4, characterized in that: The locking element (601) is fixed between the lower side plate (11) and the upper side plate (12) by the positioning system (7). The positioning system (7) is a rod-shaped structure with a first protruding end (701) and a second protruding end (702) at both ends. The first protruding end (701) and the second protruding end (702) extend from the outer wall of the lower side plate (11) and the upper side plate (12) respectively.

6. The optimized volume disconnector operating mechanism according to claim 1, characterized in that: The bottom end of the main spring (3) is connected to the pin of the third link (16), and the bottom end of the auxiliary spring (4) is connected to the bottom ends of the lower side plate (11) and the upper side plate (12).

7. The optimized volume disconnector operating mechanism according to claim 1, characterized in that: The second movable transmission hole (2022) and the transmission rod (201) have matching cross-sectional structures, both being hexagonal structures.

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